Uncured putty material

The invention provides an uncured putty material. Components comprise 40-80 parts by mass of polyphenylene oxide silicone rubber, 1-5 parts by mass of fumed silica, equal to or less than 0.5 part by mass of iron oxide red, 1-10 parts by mass of pyrophyllite and 10-50 parts by mass of silicone oil. According to the uncured putty material, on the basis of the polyphenylene oxide silicone rubber, heat-resistant functional filler is used, thus not only is heat resistance improved, but also the ablation resistance performance and the lubricating performance are not reduced, the viscosity performance and the sealing performance of the built uncured putty material can meet the use requirements, and strict dynamic sealing and use requirements of a movable nozzle in a heat-proof environment can bemet. 本发明提供了一种不固化腻子材料，组分包括40～80质量份的聚苯醚撑硅橡胶、1～5质量份的气相二氧化硅、小于等于0.5质量份的铁红、1～10质量份的叶腊石和10～50质量份的硅油。本发明在聚苯醚撑硅橡胶的基础上使用耐热功能填料，既提高了耐热性，又不降低耐烧蚀性能和润滑性能，建立的不固化腻子材料的粘度性能和密封性能达到使用要求，能够满足防热环境严酷的摆动喷管动态密封和使用要求。